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Chemistry, 22.07.2020 01:01 princesstn28oqlfir
What does the kinetic theory state about the relationship between the speed and temperature of gas molecules?
OA As the temperature increases, the speed of gas molecules remains constant.
OB
As the temperature increases, the speed of gas molecules decreases.
OC. As the temperature increases, the speed of gas molecules increases.
OD. As the speed of gas molecules increases the temperature becomes constant
OE As the temperature decreases, the speed of gas molecules increases.
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Chemistry, 22.06.2019 08:00
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Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
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What does the kinetic theory state about the relationship between the speed and temperature of gas m...
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